Systems and methods for noise removal in an optical measurement system
US12059270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Dec 22, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0238
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An illustrative optical measurement system includes a light source configured to emit light directed at a target within a user. The system further includes a detector configured to detect photon arrival times for photons of the light after the light is scattered by the target. The system further includes a processor configured to determine, based on the photon arrival times, histogram data associated with the target, the histogram data including noise. The processor is further configured to determine, based on the photon arrival times, a random matrix corresponding to the photon arrival times. The processor is further configured to determine, based on the random matrix, a noise distribution representing a distribution of the noise within the histogram data. The processor is further configured to generate clean histogram data using the noise distribution to filter at least a portion of the noise from the histogram data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.